Search and Browse the MSC 2000
46-XX
Functional analysis {For manifolds modeled on topological linear spaces, see 57Nxx, 58Bxx} → ZMATH
46Cxx
Inner product spaces and their generalizations, Hilbert spaces {For function spaces, see 46Exx} → ZMATH
46C05
Hilbert and pre-Hilbert spaces: geometry and topology (including spaces with semidefinite inner product) → ZMATH
46C07
Hilbert subspaces (= operator ranges); complementation (Aronszajn, de Branges, etc.) [See also 46B70, 46M35] → ZMATH
46C15
Characterizations of Hilbert spaces → ZMATH
46C20
Spaces with indefinite inner product (Krein spaces, Pontryagin spaces, etc.) [See also 47B50] → ZMATH
46C50
Generalizations of inner products (semi-inner products, partial inner products, etc.) → ZMATH
46C99
None of the above, but in this section → ZMATH
